package com.practices2.util;

import java.io.File;
import java.io.FileOutputStream;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.os.Environment;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.widget.Toast;

public class GetandSaveCurrentImage {
	private Context cx;
	private Activity activity=new Activity();
	/**
	 * 获取和保存当前屏幕的截图
	 */
	private void GetandSaveCurrentImage()  
	{  
	    //1.构建Bitmap  
	    WindowManager windowManager = activity.getWindowManager();  
	    DisplayMetrics dm=new DisplayMetrics();
	     windowManager.getDefaultDisplay().getMetrics(dm);  
	     
	    int w = dm.widthPixels;
	    int h = dm.heightPixels;
	      
	    Bitmap Bmp = Bitmap.createBitmap( w, h, Config.ARGB_8888 );      
	      
	    //2.获取屏幕  
	    View decorview = activity.getWindow().getDecorView();   
	    decorview.setDrawingCacheEnabled(true);   
	    Bmp = decorview.getDrawingCache();   
	    
	    String SavePath = getSDCardPath()+"/AndyDemo/ScreenImage";
	  
	    //3.保存Bitmap   
	    try {  
	        File path = new File(SavePath);  
	        //文件  
	        String filepath = SavePath + "/Screen_1.png";  
	        File file = new File(filepath);  
	        if(!path.exists()){  
	            path.mkdirs();  
	        }  
	        if (!file.exists()) {  
	            file.createNewFile();  
	        }  
	        FileOutputStream fos = null;  
	        fos = new FileOutputStream(file);  
	        if (null != fos) {  
	            Bmp.compress(Bitmap.CompressFormat.PNG, 90, fos);  
	            fos.flush();  
	            fos.close();    
	        }  
	  
	    } catch (Exception e) {  
	        e.printStackTrace();  
	    }  
	}  
	   /**
	    * 获取SDCard的目录路径功能
	    * @return
	    */
	private String getSDCardPath(){
		File sdcardDir = null;
		//判断SDCard是否存在
		boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
		if(sdcardExist){
			sdcardDir = Environment.getExternalStorageDirectory();
		}
		return sdcardDir.toString();
	}
}
